// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <GLES2/gl2extchromium.h>

#include "base/logging.h"
#include "gpu/command_buffer/service/feature_info.h"
#include "gpu/command_buffer/tests/gl_manager.h"
#include "gpu/command_buffer/tests/gl_test_utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace gpu {

class GLLoseContextTest : public testing::Test {
protected:
    void SetUp() override
    {
        GLManager::Options options;
        gl2_.Initialize(options);
        options.context_lost_allowed = true;
        gl1a_.Initialize(options);
        options.share_group_manager = &gl1a_;
        gl1b_.Initialize(options);
    }

    void TearDown() override
    {
        gl1a_.Destroy();
        gl1b_.Destroy();
        gl2_.Destroy();
    }

    GLManager gl1a_;
    GLManager gl1b_;
    GLManager gl2_;
};

// Test that glLoseContextCHROMIUM loses context in the same
// share group but not other.
TEST_F(GLLoseContextTest, ShareGroup)
{
    // If losing the context will cause the process to exit, do not perform this
    // test as it will cause all subsequent tests to not run.
    if (gl1a_.workarounds().exit_on_context_lost)
        return;

    gl1a_.MakeCurrent();
    glLoseContextCHROMIUM(
        GL_GUILTY_CONTEXT_RESET_EXT, GL_INNOCENT_CONTEXT_RESET_EXT);

    uint8 expected_no_draw[] = {
        GLTestHelper::kCheckClearValue,
        GLTestHelper::kCheckClearValue,
        GLTestHelper::kCheckClearValue,
        GLTestHelper::kCheckClearValue,
    };
    // Expect the read will fail.
    EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_no_draw));
    gl1b_.MakeCurrent();
    // Expect the read will fail.
    EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_no_draw));
    gl2_.MakeCurrent();
    uint8 expected_draw[] = {
        0,
        0,
        0,
        0,
    };
    // Expect the read will succeed.
    EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_draw));
}

} // namespace gpu
